Coagulase-negative staphylococci: Difference between revisions

Latest revision as of 11:19, 21 November 2022

Group of Gram-positive cocci that are catalase positive and coagulase negative

Organisms

Staphylococcus epidermidis group
Staphylococcus haemolyticus group
Staphylococcus saprophyticus: mainly causes UTIs
Staphylococcus massiliensis
Staphylococcus lugdenensis: has more in common with Staphylococcus aureus and should never be considered a contaminant
Unclear grouping

Management

Generally resistant to β-lactams
First-line: vancomycin
Alternatives: linezolid, daptomycin, co-trimoxazole, ciprofloxacin, doxycycline

@@ Line 1: / Line 1: @@
+* Group of [[Stain::Gram-positive]] [[Shape::coccus|cocci]] that are catalase [[Catalase::positive]] and coagulase [[Coagulase::negative]]
-= Coagulase-negative Staphylococci (CoNS/CNSt) =
-= Organisms =
+==Organisms==
-* ''Staphylococcus epidermidis'' group
+*''Staphylococcus epidermidis'' group
-** ''S. epidermidis''
+**[[Staphylococcus epidermidis]]
-** ''S. capitis''
+**[[Staphylococcus capitis]]
-** ''S. simulans''
+**[[Staphylococcus simulans]]
+*''Staphylococcus haemolyticus'' group
-** ?''S. warneri''
-* ''S. haemolyticus'' group
+**[[Staphylococcus haemolyticus]]
+**[[Staphylococcus hominis]]
-** ''S. haemolyticus''
+**[[Staphylococcus devriesei]]
-** ''S. hominis''
+*[[Staphylococcus saprophyticus]]: mainly causes UTIs
-** ''S. devriesei''
+*[[Staphylococcus massiliensis]]
-* ''S. saprophyticus'': mainly causes UTIs
+*[[Staphylococcus lugdenensis]]: has more in common with Staphylococcus aureus and should never be considered a contaminant
-* ''S. massiliensis''
+*Unclear grouping
-* ''S. lugdenensis'': has more in common with ''S. aureus'' and should never be considered a contaminant
+**[[Staphylococcus lyticans]]
-* Unclear grouping
+**[[Staphylococcus pettenkoferi]]
-** ''S. lyticans''
+**[[Staphylococcus petrasii]]
-** ''S. pettenkoferi''
+**[[Staphylococcus pseudolugdunensis]]
-** ''S. petrasii''
+**[[Staphylococcus warneri]]
-** ''S. pseudolugdunensis''
-= Management =
+==Management==
-* Generally resistant to beta lactams
+*Generally resistant to [[β-lactams]]
-* First-line: vancomycin
+*First-line: [[vancomycin]]
-* Alternatives: linezolid, daptomycin, Septra, ciprofloxacin, doxycycline
+*Alternatives: [[linezolid]], [[daptomycin]], [[co-trimoxazole]], [[ciprofloxacin]], [[doxycycline]]
 [[Category:Gram-positive cocci]]